Wednesday's Ask the Experts: Streaky floors

Wednesday''s Ask the Experts question from a cleaning professional on the International Custodial Advisors Network (ICAN) "Ask the Experts" page: Recently I scrubbed and refinished a floor. When I went back the next day to clean the building, I did my daily routine. Before dust mopping the floor I changed to a clean dust mop and used a clean wet mop head to mop the floor. Still, I get streaks after the floor dries. What could be my problem?

The answer:

Streaks appearing on a floor after mopping are a visible residue. When the water from the mopping solution evaporates, the detergent and loosened soils, if not fully picked up by the mopping, remains and is visible.
To keep this from happening ... — Lynn E. Krafft, ICAN/ATEX editor